Z Score Definition
z-scores
noun
A measure of the distance in units of standard deviations of a particular value in a distribution or a set of data from the mean of that distribution or set of data.
American Heritage
Other Word Forms of Z Score
Noun
Singular:
Z score
Plural:
z-scoresOrigin of Z Score
From the use of "Z" in Z distribution, another name for normal distribution.
From Wiktionary